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Finding the Fourth Proportional to 159,599.93, 220,249.44 and 87,982.54

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Solution

The fourth proportional to 159,599.93, 220,249.44 and 87,982.54 is: 121,416.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,599.93 : 220,249.44 = 87,982.54 : x
  2. Step 2: Convert to fraction form
    159,599.93/220,249.44 = 87,982.54/x
  3. Step 3: Cross multiply
    159,599.93x = 220,249.44 × 87,982.54
  4. Step 4: Simplify right side
    159,599.93x = 19,378,104,063.53
  5. Step 5: Solve for x
    x = 19,378,104,063.53/159,599.93
  6. Step 6: Final answer
    x = 121,416.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.